Well now there are numbers to back up what I have been saying since 2009: the tea party movement isn’t a “movement” at all — it’s just a bunch of really pissy Republicans.

From the New York Times, an op-ed by researchers David Campbell and Robert Putnam:

GIVEN how much sway the Tea Party has among Republicans in Congress and those seeking the Republican presidential nomination, one might think the Tea Party is redefining mainstream American politics.

But in fact the Tea Party is increasingly swimming against the tide of public opinion: among most Americans, even before the furor over the debt limit, its brand was becoming toxic. To embrace the Tea Party carries great political risk for Republicans, but perhaps not for the reason you might think.

Polls show that disapproval of the Tea Party is climbing. In April 2010, a New York Times/CBS News survey found that 18 percent of Americans had an unfavorable opinion of it, 21 percent had a favorable opinion and 46 percent had not heard enough. Now, 14 months later, Tea Party supporters have slipped to 20 percent, while their opponents have more than doubled, to 40 percent.

Of course, politicians of all stripes are not faring well among the public these days. But in data we have recently collected, the Tea Party ranks lower than any of the 23 other groups we asked about — lower than both Republicans and Democrats. It is even less popular than much maligned groups like “atheists” and “Muslims.” Interestingly, one group that approaches it in unpopularity is the Christian Right.

And this despite Americans generally becoming more economically conservative over time.

The researchers did a study to try and predict what kinds of people would become tea party supporters, and you’ll never believe what they found. OK you will believe it:

Beginning in 2006 we interviewed a representative sample of 3,000 Americans as part of our continuing research into national political attitudes, and we returned to interview many of the same people again this summer. As a result, we can look at what people told us, long before there was a Tea Party, to predict who would become a Tea Party supporter five years later. We can also account for multiple influences simultaneously — isolating the impact of one factor while holding others constant.

Our analysis casts doubt on the Tea Party’s “origin story.” Early on, Tea Partiers were often described as nonpartisan political neophytes. Actually, the Tea Party’s supporters today were highly partisan Republicans long before the Tea Party was born, and were more likely than others to have contacted government officials. In fact, past Republican affiliation is the single strongest predictor of Tea Party support today.

What’s more, contrary to some accounts, the Tea Party is not a creature of the Great Recession. Many Americans have suffered in the last four years, but they are no more likely than anyone else to support the Tea Party. And while the public image of the Tea Party focuses on a desire to shrink government, concern over big government is hardly the only or even the most important predictor of Tea Party support among voters.

So what do Tea Partiers have in common? They are overwhelmingly white, but even compared to other white Republicans, they had a low regard for immigrants and blacks long before Barack Obama was president, and they still do.

More important, they were disproportionately social conservatives in 2006 — opposing abortion, for example — and still are today. Next to being a Republican, the strongest predictor of being a Tea Party supporter today was a desire, back in 2006, to see religion play a prominent role in politics. And Tea Partiers continue to hold these views: they seek “deeply religious” elected officials, approve of religious leaders’ engaging in politics and want religion brought into political debates. The Tea Party’s generals may say their overriding concern is a smaller government, but not their rank and file, who are more concerned about putting God in government.

This inclination among the Tea Party faithful to mix religion and politics explains their support for Representative Michele Bachmann of Minnesota and Gov. Rick Perry of Texas. Their appeal to Tea Partiers lies less in what they say about the budget or taxes, and more in their overt use of religious language and imagery, including Mrs. Bachmann’s lengthy prayers at campaign stops and Mr. Perry’s prayer rally in Houston.

They also compare the teas to McGovernites, who alienated the center during the 1960s.